Stacking fault energy

Dear everyone,
Can anyone explain how variation of Stacking Fault Energy(SFE) for different Face Centered Cubic(FCC) materials affect the stain hardening rate? For example SFE of aluminium is 250 mJ/m^2 and that of stainless steel is 9 mJ/m^2. Can you please explain which material has higher strain hardening coefficient and the reason behind it?